| 摘要 |
PURPOSE: To provide a syringe made of resin which can be steam-sterilized and also has heat and crack resistance. CONSTITUTION: This syringe is a syringe (A) which is composed of a cylinder 1 and a piston 2 which is loaded on the cylinder 1, and is constituted by an injection-molded product of a polycarbonate having a viscosity average molecular weight of 18,000-30,000. Furthermore, the piston 2 is composed of a piston body 21 which is composed of the injection molded product of the polycarbonate having a viscosity average molecular weight of 18,000-30,000 and an elastic seal member 22 which is attached on this piston body 21 and keeps airtightness between the cylinder wall and itself. |
